Twitter: "Biggest scam of 2017."

Obviously Phelps couldn't swim side-by-side with the great white so instead organizers of the race let the shark swim the 100-meter stretch first, and then Phelps, side-by-side with a CGI shark, took to the frigid waters of the off the coast of South Africa.

In the end, the shark finished the 100-meter race in 36.1 seconds compared to Phelps' time of 38.1 seconds.